*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html,body{
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
}
html{
    overflow: hidden;
}
body{
    background-image: url('../images/bg.jpg');
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

h2 i.iconfont{
    color: #fff;
    font-size: 80px;
}
h2{
    text-align: center;
    margin: 50px 0;
}
form{
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 80vh;
    align-items: center;
}
form input{
    margin: 10px 20px;
    width: 80%;
    height: 60px;
    border: none;
    outline: none;
    padding-left: 8px;
    border-radius: 4px;
}
form input[type="submit"]{
    background-color: #0ff;
    color: #fff;
    font-weight: bold;
    letter-spacing: 10px;
    font-size: 18px;
}
span{
    margin: 10px 20px;
    color: #0f0;
    line-height: 20px;
    background-color: #eee;
    display: block;
    padding: 5px 0 5px 5px;
}
span a{
    font-size: 20px;
    color: #f00;
    text-decoration: none;
    margin-left: 10px;
    font-weight: bold;
}
